• 제목/요약/키워드: Patterns

검색결과 28,298건 처리시간 0.049초

Empirical assessment of design patterns' fault-proneness at different granularity levels

  • Mohammed, Mawal A.;Elish, Mahmoud O.
    • Advances in Computational Design
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    • 제2권4호
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    • pp.293-311
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    • 2017
  • There are several claimed benefits for the impact of design patterns (DPs) on software quality. However, the association between design patterns and fault-proneness has been a controversial issue. In this work, we evaluate the fault-proneness of design patterns at four levels: the design level, category level, pattern level, and role level. We used five subject systems in our empirical study. As a result, we found that, at the design level, the classes that participate in the design patterns are less fault-prone than the non-participant classes. At the category level, we found that the classes that participate in the behavioral and structural categories are less fault-prone than the non-participant classes. In addition, we found that the classes that participate in the structural design patterns are less fault-prone than the classes that participate in the other categories. At the pattern level, we found that only five patterns show significant associations with fault-proneness: builder, factory method, adapter, composite, and decorator. All of these patterns except for builder show that the classes that participate in each one of them are less fault-prone than the non-participant classes in that pattern. The classes that participate in the builder design pattern were more fault-prone than the non-participant classes and the classes that participate in several patterns: the adapter, the composite, and the decorator design patterns. At the role level, the most significant differences were between the classes that participate in some roles and the non-participant classes. Only three pairs of design pattern roles show significant differences. These roles are concrete-product vs. concrete-creator, adapter vs. adaptee, and adapter vs. client. The results recommend the use of design patterns because they are less fault-prone in general except for the builder design pattern, which should be applied with care and addressed with more test cases.

조선시대 출토직물에 나타난 화문직의 특성에 관한 연구 (A Study on Flower Patterned Fabrics of Exhumed Clothing in Chosun Dynasty)

  • 박문영;김호정
    • 한국의류산업학회지
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    • 제10권1호
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    • pp.22-29
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    • 2008
  • In this study, it is investigated the types and the compounding method of flower patterns and the uses of flower patterned fabrics in Chosun Dynasty. Research was done through the references of exhumed clothing during 16-17th century. Our ancestors had used the various flower patterns based on Buddhism, Taoism and Confucianism onto the fabrics. The flower patterns on the fabrics were expressed with the other patterns such as treasure patterns, letter patterns or bird patterns. And the flower patterns symbolized the various good meanings such as longevity, integrity and prosperity etc. In the order of the percentage, the types of the flower patterns were shown Lotus(27.31%), Arabesque(26.85%), Japanese apricot(14.81%), Peony(8.79%), Flowering plants(6.94%), Chrysanthemum(6.01%), Pomegranate(2.31%) patterns and so on. Especially the Lotus pattern was shown up most frequently. That of shape was designed as blooming(開花), full bloom(滿開) and the side of flower(側面). By the compounding method, the compound types mixed with the other patterns were used much more than the individual types composed by its own pattern. The flower patterns were used a lot in Jeogori(Jacket) regardless of the ganders and in men's Po(coat) including Cheollik(天翼), Dappo(胡), Jeonbok(戰服), Dahnryoung(團領), etc. Also contrary to these days, the flower patterned fabrics had come out in the shrouds. Judging from these facts, our ancestors wished that the meaning of the immortal life was included in the flower pattern.

20대 성인여성을 위한 드레스용 토르소원형 연구 (The Development of Basic Dress Torso Patterns for Women in Their 20s)

  • 이유민;김소라
    • 패션비즈니스
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    • 제19권2호
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    • pp.85-102
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    • 2015
  • This study aimed to develop dress torso patterns with both aesthetic and functional qualities that fit for women in their 20s. In order to develop dress torso patterns, wearing tests were done. By collecting drafting methods of the patterns through literature study and the survey of wedding dress manufacturers, four kinds of dress torso patterns were selected. The existing dress torso patterns have no or very small ease in chest, waist, and hip circumferences. As a result of wearing tests of these four existing dress torso patterns, drafting methods of dress torso patterns that have the best satisfied values close to optimum zero were selected; the first and second research dress torso patterns were developed by modifying and supplementing items that had noticeable difference through the Wilcoxon rank sum test with a selected measured value and a best satisfied value of zero; and deduced a drafting method for the final developed dress torso patterns by a wearing test of the second developed dress torso patterns. Distinctive aspects of drafting methods of the final developed dress torso patterns were that ease for each area was given differently by considering a functional quality and a chest circumference instead of a bust circumference was applied to reduce influence by the size of breast in neck and armhole areas, and a back bust level. Back neck breadth was made wider and front neck breadth was made less narrow due to a recent change of age 20s female adults' shoulder and back shape.

이족의 전통문양을 활용한 가방디자인 개발 연구: 패브릭 패턴 디자인을 중심으로 (The Development of a Bag Design Using the Yi Tribe's Traditional Patterns: Focusing on the Fabric Pattern Design)

  • 이목결;조진숙
    • 패션비즈니스
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    • 제19권2호
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    • pp.149-170
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    • 2015
  • The purpose of this study is to link the Yi tribe's traditional patterns to bag design. Yi tribe is a minor ethic group in China, whose traditional pattern has a high artistic value in that its shapes are diverse and each one has peculiar elegance. Traditional patterns are also indicative of spiritual dept or symbolic stories, rather than being indicative of simple formative beauty. Thus, reorganizing these patterns and applying them artistically to design- in terms of resource utilization- would be significant. Out of all of the Yi tribe's traditional patterns, the cherry blossom_(马樱花), water wave_(水波), sky father and earth mother_(天父地母), pomegranate blossom, triangle, sheep' horn, wisteria vine_(藤条), square and diaper_(四角菱形) and the zigzag_(曲折) patterns were chosen for use during the development of a bag design. This study is based upon document study, including research papers and internet web sites, the point of which was to investigate the form of the traditional patterns, and the creative design process. The design procedure includes these sub-processes: selection, arrangement and color-scheme. In the selection process, the form of the pattern was edited using Adobe Photoshop. The pattern was freely arranged to reflect various emotions. In terms of the color-scheme of the patterns, the colors used by Henri Matisse(1869-1954) in his work were selected and adapted when dyeing the patterns. Subsequently, the final design resulting from these design development processes was applied to the actual production of the bag by using canvas fabric and leather, after which the bag image was proposed using computer simulation. In conclusion, six bag designs were created using traditional patterns from the Yi tribe. Through the processes explained above, this study confirmed that traditional patterns could be widely applied as design motifs and that more sophisticated, modern, and creative designs could be developed based on traditional patterns.

텍스타일 디자인 교육을 위한 헤슈타일링 개발 프로세스 연구 (A study on the development process of Heesch-tiling for textile design education)

  • 최유진
    • 한국의상디자인학회지
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    • 제23권3호
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    • pp.57-71
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    • 2021
  • When teaching traditional pattern-themed textile design, it has been found that many students struggle during the investigation stage of traditional patterns and complete the development of patterns in relatively simple layout methods, such as block patterns and half drop patterns. Until now, digital textile design textbooks lack content on how to develop patterns. Judging that the current teaching method leads to difficulties in developing a new sense of textile design, this study focused on Heesch-tiling tessellation and software called TESS, a program that can transform patterns themselves. This study is an academic study on the methodology of first developing patterns through TESS, a tessellation program developed for elementary school students in the U.S., and then applying various lines and colors to the complete patterns and textures using Adobe Illustrator. In this study, the concept, formative characteristics, and generative principles of Heesch-tiling tessellation were examined, and the process of developing new patterns using the TESS program, which can be used to create patterns through Heesch-tiling principles, was intended to help in textile design education. Therefore, after analyzing the comprehensive concepts and principles of tessellation, the next step is to understand the principles and the characteristics of pattern making only for Heesch-tiling tessellation, and then ultimately to develop new patterns. While patterns using traditional tessellation layouts have been characterized mainly by repeated geometric shapes, Heesch-tiling tessellation can express surrealistic attributes, such as those by painter M. C. Escher or style elements such as those in neo-pop.

고구려(高句麗) 고분벽화(古墳壁畵)에 나타난 문양(紋樣)과 상징성(象徵性)에 관(關)한 고찰(考察) (A study about pattern and symbol shown in the mural painting of Koguryo dynasty's tomb)

  • 최혜정
    • 복식
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    • 제13권
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    • pp.51-72
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    • 1989
  • In this thesis, I examined the mental, philosophical aspects and the aesthetic sense of our ancestors through the study of the patterns pictured in the mural paintings of Koguryo dynasty's old tomb. To view the mode of construction in Koguryo dynasty from present angle, the detailed analysis of the patterns was done. As a result, I could fully understand the formative consciousness of our nation. 1. I defined the process of transition of the mural paintings by putting some 70 mural aintings into the form of a diagram. 2. The cultural aspects of the mural paintings in Koguryo dynasty were characterized by the fusion of our primitive religion and Buddhism, Confucianism and Taoism which were introduced from China. From this fact, I could inferred that Koguryo people were giving off the strong desire for the faith by means of the mural paintings. Further more I found that configuration of the patterns such as religious elements. 3. The types of the patterns were classified into four types, this is, geometric type, natural type, cultural type and abstract type, Among these types, geometric type and natural type were nonsymbolic in nature but became cultured and abstracted in course of time. cultural pattern and abstract pattern got the symbolic meaning in the long run. Of all the constitution of the patterns represented in the mural paintings such as repeat constitution, left and right symmetric constitution, top and bottom symmetric constitution and rotary symmetric constitution, the left and right symmetric constitution was mainly used and some monotony of left and right symmetric constitution. The analysis of motif which was got from the mode of the patterns showed that the mixing of symbolic and nonsymbolic patterns made it possible to regard the separate symbol as compound in nonsymbolic patterns and the combination between nonsymbolic patterns ensured the understanding of other patterns in certain cases. Our ancestors made great efforts to transmit certain meaning symbolically. Also to heighten the symbolism, they drew the meangless patterns firstly and then appended meaning to those patterns secondly. Furthermore, they offered the background to the patterns comblined with symbolism, so that meaning transmission was clarified at last. As mentioned above, the patterns shown in the mural paintings of Koguryo dynasty's old tomb were characterized by natural beauty. And natural beauty was found out clearly in the form and constitution of the patterns. Therefore I concluded that our nation's religious, philosophical tradition was acted on the patterns strongly.

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초등학교 예비교사들의 수학적 '문제 만들기'에 나타나는 문장의 오류 유형 분석 (Analysis on Sentence Error Types of Mathematical Problem Posing of Pre-Service Elementary Teachers)

  • 허난;신호철
    • 한국학교수학회논문집
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    • 제16권4호
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    • pp.797-820
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    • 2013
  • 본 논문은 초등학교 예비교사 100명을 대상으로 수학적 '문제 만들기'의 문장에 나타나는 오류를 분석하고 그에 대한 간단한 예방책을 기술한 논의이다. '문제 만들기' 문장에는 '음운 오류, 단어 오류, 문장 오류, 의미 오류, 표기 오류' 등 5가지 오류 유형이 나타났다. 이를 다시 14개의 세부 유형으로 구분하여 세부적으로 논의하였다. 곧 음운 오류의 유형은 'ㄹ'첨가 오류와 조사끼리의 준말 사용 오류가 있다. 단어 오류는 크게 '부적절한 사용 오류'와 '부당한 생략 오류'로 구분하고 이를 다시 조사, 어미, 어휘의 사용 오류와 조사와 어휘의 부당한 생략 오류로 유형화하였다. 문장 오류는 '지시 대상의 오류, 문장 성분의 생략 오류, 어순 오류, 자체 비문'의 네 가지로 유형화하였다. 의미 오류는 논리적 모순 관계 오류와 중의성을 띄는 의미 오류에 대해서만 논의하였고, 표기 오류는 띄어쓰기와 문장 부호, 철자에 관한 한글 맞춤법 오류와 외래어 표기법 오류 등에 대하여 논의하였다. 또한 14개의 문법적 세부 오류 유형을 방지하기 위한 예방책을 제시하였다. 먼저 구어와 문어의 차이를 인식하고, 둘째 글을 쓰는 문어 상황에 맞도록 구어적 표현을 지양하도록 하는 것, 셋째 국어 기본 문형 학습에 대한 강조, 넷째 단어 의미의 명확한 이해를 바탕으로 한 의미의 논리적 전개 인식을 제안하였으며, 끝으로 국어 어문 규정에 대한 학습을 제안하였다. 그리고 대학생 글쓰기 교육에 대한 필요성에 대한 재인식을 결론으로 갈음하였다.

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초등학교 2학년 학생들의 패턴에 대한 이해 실태 조사: 규칙 찾기 단원의 학습 전과 후의 비교분석을 중심으로 (Second graders' understanding of patterns: Focusing on the comparative analysis of before and after learning of the finding rules unit)

  • 방정숙;이수진;강은진;김리나
    • 한국수학교육학회지시리즈A:수학교육
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    • 제62권2호
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    • pp.175-194
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    • 2023
  • 초등학생들을 대상으로 한 패턴 학습의 중요성에 비해 실제 저학년 학생들의 패턴에 대한 이해를 자세히 조사한 연구는 거의 없다. 이에 본 연구는 초등학교 2학년 학생들의 패턴에 대한 이해 실태를 조사하였다. 특히 2학년에서는 규칙 찾기 단원을 통해 패턴에 대한 학습이 이루어지기 때문에 해당 단원의 학습 전과 후의 이해 실태를 비교 분석하였다. 이를 위해 저학년 학생들의 패턴 학습 지도에 대한 선행 연구를 토대로 학생들의 패턴에 대한 이해를 측정할 수 있는 검사 도구를 개발하여, 최종 189명 학생들의 자료를 분석하였다. 연구 결과, 대부분의 문항에서 사전 검사에 비해 사후 검사에서 정답률이 높게 나와 규칙 찾기 단원의 학습 효과가 있는 것으로 판단된다. 그러나 학생들은 기하나 수 패턴에서 두 개의 구성 요소가 동시에 변화하는 규칙 찾기, 구조가 유사한 패턴 찾기, 증가 기하 패턴을 수 패턴으로 바꾸어 표현하기, 증가 패턴에서 빈 항을 구하기, 여러 가지 답이 가능한 패턴의 특정한 항을 추측하기 등에서 어려움을 겪는 것으로 드러났다. 이와 같은 연구 결과를 바탕으로 본 연구에서는 초등학교 저학년 학생들의 패턴 이해 및 지도에 대한 시사점을 논의하였다.

모-자녀간의 의사소통유형과 청소년의 자아정체감에 관한 연구 (Mother Adolescent Communication Patterns' and Ego-Identity Development in Adolescents)

  • 권혜진;윤종희
    • 아동학회지
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    • 제14권1호
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    • pp.167-177
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    • 1993
  • The purpose of the present study to investigate relationships among family background factors (i. e. adolescents' sex, mother's educational level and employment status. family's SES, and family types), mother-adolescent communication patterns and ego-identity development of adolescents. The subjects were 169 mother-adolescent dyads living in Seoul. Statistical methods used for the data analysis were frequencies, percentiles, Mean, ANOVA, Duncan's multiple range test, Pearson's product-moment correlation, regression analysis, ANCOVA, and Cronbach's ${\alpha}$. The results were as follows: (1) Significant differences of the adolescents were between family's SES and open communication patterns, between family types and problematic communication patterns. (2) Significant differences of the mothers were between family's SES and open communication patterns, and among family's SES, mother's educational level and problematic communication patterns. (3) There were significant differences in ego-identity of adolescents according to family's SES. (4) There were significant relationships between mother-adolescent communication patterns and the ego-identity development of adolescents. (5) The most influential variable explaining adolescents' ego-identity development was found to be problematic communication patterns perceived by adolescents. Family background factors and mother's communication patterns were not found to have significant effects.

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한국어 자유 발화 음성의 억양 패턴 (Intonation Patterns of Korean Spontaneous Speech)

  • 김선희
    • 말소리와 음성과학
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    • 제1권4호
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    • pp.85-94
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    • 2009
  • This paper investigates the intonation patterns of Korean spontaneous speech through an analysis of four dialogues in the domain of travel planning. The speech corpus, which is a subset of spontaneous speech database recorded and distributed by ETRI, is labeled in APs and IPs based on K-ToBI system using Momel, an intonation stylization algorithm. It was found that unlike in English, a significant number of APs and IPs include hesitation lengthening, which is known to be a disfluency phenomenon due to speech planning. This paper also claims that the hesitation lengthening is different from the IP-final lengthening and that it should be categorized as a new category, as it greatly affects the intonation patterns of the language. Except for the fact that 19.09% of APs show hesitation lengthening, the spontaneous speech shows the same AP patterns as in read speech with higher frequency of falling patterns such as LHL in comparison with read speech which show more LH and LHLH patterns. The IP boundary tones of spontaneous speech, showing the same five patterns such as L%, HL%, LHL%, H%, LH% as in read speech, show higher frequency of rising patterns (H% and LH%) and contour tones (HL%, LH%, LHL%) while read speech on the contrary shows higher frequency of falling patterns and simple tones at the end of IPs.

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